Accession Number : AD0749947

Title :   Vibrational Relaxation Processes in Carbon Dioxide and Nitrogen Mixtures.

Descriptive Note : Interim technical rept.,

Corporate Author : MISSISSIPPI UNIV UNIVERSITY DEPT OF PHYSICS

Personal Author(s) : Shields,F. Douglas ; Warf,C. Cayce

Report Date : 01 SEP 1972

Pagination or Media Count : 87

Abstract : Measurements were made on 70% N2/30% CO2 and 84% N2/16% CO2 mixtures at room temperature and at 600K. The most important result was an accurate determination of the V-T transition rates for CO2/N2 collisions and of the relative efficiency of CO2 and N2 for this V-T process. Information was also acquired in regard to the rate of energy transfer into and out of the asymmetric stretching mode of the CO2 molecule and of the resonant exchange rate between the asymmetric stretching mode of carbon dioxide and the first excited level of nitrogen (v=1). Finally a brief report discusses acoustic absorption to extract the rate of energy transfer between the vibration of the bending mode of CO2 and the O2 vibration and the rate at which O2 deexcites the bending mode of CO2 in a v-t process.

Descriptors :   (*CARBON DIOXIDE, RELAXATION TIME), OXYGEN, NITROGEN, MIXTURES, INTERACTIONS, MOLECULAR ENERGY LEVELS, REACTION KINETICS, ELECTRON TRANSITIONS, ACOUSTIC PROPERTIES, PRESSURE, THESES

Subject Categories : Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE